Antigonid dynasty

The Antigonid Empire was one of the successor states to the Macedonian Empire established by Alexander the Great in 336 BC, founded by his general Antigonus in 312 BC. The Antigonid Empire was originally confined to Asia Minor and northern Syria, and although they were defeated at the Battle of Ipsus in 306 BC, they seized power in Macedon in 281 BC following Seleukos's death. The Antigonids became the ruling house of Macedon, and they allied with Carthage against the Roman Republic in the Second Punic War. In response, Rome invaded them in 197 BC and defeated them at the Battle of Cynoscephalae and conquered them in 146 BC following another defeat at the Battle of Pydna.